package com.foreknow.demo12;

public class A {
//  @Override
//  public String toString() {
//    return "这是我想要的内容";
//  }

  public static void main(String[] args) {
    A a = new A();
    System.out.println(a); //输出内存地址com.foreknow.demo12.A@60e53b93
  }
  }
